code: def getsitepackages(prefixes=None):
      """Returns a list containing all global site-packages directories.
  
      For each directory present in ``prefixes`` (or the global ``PREFIXES``),
      this function will find its `site-packages` subdirectory depending on the
      system environment, and will return a list of full paths.
      """
      sitepackages = []
      seen = set()
  
      if prefixes is None:
          prefixes = PREFIXES
  
      for prefix in prefixes:
          if not prefix or prefix in seen:
              continue
          seen.add(prefix)
  
          if os.sep == "/":
              libdirs = [sys.platlibdir]
              if sys.platlibdir != "lib":
                  libdirs.append("lib")
  
              for libdir in libdirs:
                  path = os.path.join(
                      prefix,
                      libdir,
                      "python%d.%d" % sys.version_info[:2],
                      "site-packages",
                  )
                  sitepackages.append(path)
          else:
              sitepackages.append(prefix)
              sitepackages.append(
                  os.path.join(prefix, "Lib", "site-packages")
              )
      return sitepackages
  
imports: import sys
  import os
  import builtins
  import _sitebuiltins
  import io
label_desc: Use image node_id 14 for calling a global function with example usage: getsitepackages(prefixes) and returns: sitepackages